POLYAZO PIGMENTS OF THE 2-HYDROXYNAPHTHALENE-3-CARBOXYLIC ACIDARYLIDE SERIES

• US 3,832,339 A
• Filed: 06/22/1971
• Issued: 08/27/1974
• Est. Priority Date: 06/24/1970
• Status: Expired due to Term

• Current Assignee: Berta H, Klein G, Schnabel E, Stocker E
• Original Assignee: Berta H, Klein G, Schnabel E, Stocker E
• Inventors: STOCKER E, BERTA H, SCHNABEL E, KLEIN G
• Application Number:
  US05/155,612
• Time in Patent Office: 1,162 Days
• US Class Current: 534/573
• CPC Class Codes: C09B 43/32 by reacting carboxylic or sulfonic groups, or derivatives thereof, with amines; by reacting keto-groups with amines
• CPC Class Codes: C09B 69/106 containing an azo dye
• CPC Class Codes: Y10S 534/03 Polymeric azo compounds or azo compounds containing polymeric moieties

Abstract

WHEREIN R IS AN ARYLENE GROUP, THE BONDS TO WHICH ARE NOT IN THE ORTHO-POSITION, X IS HYDROGEN OR CHLORINE ATOM AND N IS A WHOLE NUMBER GREATER THAN 3, ARE USEFUL FOR COLORING PLASTIC AND LACQUERS, ESPECIALLY SOFT POLYVINYL CHLORIDE IN RED SHADES WITH GOOD LIGHT AND SUBLIMATION FASTNESS PROPERTIES.

(1-((2-CL,4-X,5-(-CO-)-PHENYL)-N=N-),2-(HO-),3-(-CO-)-

NAPHTHALENE)N (-NH-R-NH-)N

POLYAZO PIGMENTS OF THE FORMULA

Claims